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Bulletin of Botanical Research ›› 2001, Vol. 21 ›› Issue (1): 116-125.

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GENETIC DIFFERENTIATION OF LEYMUS CHINENSIS POPULATIONS IN SONGNEN GRASSLAND

CUI Ji-zhe1,2, ZU Yuan-gang1, NIE Jiang-li1, WANG Gui-ling2   

  1. 1. Open Research Laboratory of Forest Plant Ecology, Northeast Forestry University, Harbin 150040;
    2. Department of Biology, Harbin Normal University, Harbin 150080
  • Received:2000-08-05 Online:2001-03-15 Published:2016-06-14

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Abstract: Genetic diversity and genetic differentiation of 11 Leymus chinensis populations with 2 types of grayish green and yellowish green in Songnen grassland were studied by allozyme analysis. There were differences in the allele frequency, non-equilibrium loci, A. P. He and fixation index between 2 types. The A. P. and He of yellowish green type were lower than those of grayish green type. The fixation index was less than zero in yellowish green type, and that was greater than zero in grayish green type. The difference of fixation index between the 2 types was mainly on the difference at DIA-1, PGM, SKD, and ACP loci. The genetic differentiation between the 2 types was mainly on the differentiation at ADH, DIA-2, and PGM loci. There was no correlation between the geographical distance and the genetic distance.

Key words: Leymus chinensis, allozyme, genetic diversity, genetic differentiation